CN209374085U - CM grades of fire-retarded fiber communication lines - Google Patents

CM grades of fire-retarded fiber communication lines Download PDF

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Publication number
CN209374085U
CN209374085U CN201920256839.XU CN201920256839U CN209374085U CN 209374085 U CN209374085 U CN 209374085U CN 201920256839 U CN201920256839 U CN 201920256839U CN 209374085 U CN209374085 U CN 209374085U
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fire
conductor
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何新林
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Zhongkun Wire (shenzhen) Co Ltd
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Zhongkun Wire (shenzhen) Co Ltd
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Abstract

The utility model discloses a kind of CM grades of fire-retarded fiber communication lines, including outer housing layer, conductor layer in outer housing layer, light unit layer and filled layer, the outer housing layer includes the low-smoke halogen-free flame-retardant sheath layer set gradually from outside to inside, steel-tape armouring layer, first Ceramic Composite band wrapping layer, low smoke and zero halogen oxygen barrier layer, Ceramic silicon rubber flame retardant coating and the second Ceramic Composite band wrapping layer, the conductor layer includes the metal screen layer set gradually from outside to inside, insulation screen, insulating layer, conductor shield and conductor, the light unit layer includes the polytetrafluoroethylene (PTFE) flame retardant sheath layer set gradually from outside to inside, Kevlar layer, stainless steel braiding layer, screw-thread steel sheath, aramid yarn layer, tight tube fiber coating and optical fiber.The utility model has low cigarette, low toxicity, fire resisting and fire performance, and has good pressure-resistant performance.

Description

CM grades of fire-retarded fiber communication lines
Technical field
The utility model belongs to technical field of optical fiber communication, and in particular to a kind of CM grades of fire-retarded fiber communication line.
Background technique
CM/CMG: all purpose communication wiring.This is common in the horizontal cable run in building, and compared with CMR grades of cables, they are usually It is divided into smaller bundle.CM/CMG grades of cables are realized fire-retardant using the chemical substance based on halide.According to definition, in wisp electricity In cable, CM/CMG cable must spread self-extinguish in less than 5 meters in burning.Flame does not use fan forced burning.CM/ CMG grades of cable jackets are usually made of certain class PVC, can give out chlorine device in combustion chamber, CM/CMG grades of cables have to pass through CSAFT-4 " vertical burn test ".
The prior art is applied in the emergency power supply systems of crowded places such as subway, hospital, market and is applied to Power station, steam power plant's skyscraper power supply system in CM grade fire-retarded fiber communication line, be typically due to various reasons, cause electricity Short circuit punctures and causes fire when cable is run, and the intensity of a fire is spread along cable run, increases the harmfulness of fire, cable was using Event of fire in journey can generate the toxic gases such as a large amount of smog, carbon monoxide, hydrogen chloride when burning, seriously affect Evacuating personnel simultaneously brings very big difficulty to scene of a fire rescue and relief work, constitutes grievous injury, and these materials to human life, property equipment A large amount of uses of material still cause seriously to pollute after the period scraps to environment.
For this purpose, it is proposed that a kind of good pressure-resistant performance, the CM grade with low cigarette, low toxicity, fire resisting and fire performance are fire-retardant Optical fiber communication line solves the above problems.
Utility model content
The purpose of this utility model is to provide a kind of CM grades of fire-retarded fiber communication lines, to solve to mention in above-mentioned background technique Out the problem of.
To achieve the above object, the utility model provides the following technical solutions: a kind of CM grades of fire-retarded fiber communication line, including Outer housing layer, the conductor layer in outer housing layer, light unit layer and filled layer, the outer housing layer include from outside to inside according to The low-smoke halogen-free flame-retardant sheath layer of secondary setting, steel-tape armouring layer, the first Ceramic Composite band wrapping layer, low smoke and zero halogen oxygen barrier layer, pottery Porcelain SiClx rubber flame retardant coating and the second Ceramic Composite band wrapping layer, the conductor layer includes the metal set gradually from outside to inside Shielded layer, insulation screen, insulating layer, conductor shield and conductor, the light unit layer include setting gradually from outside to inside Polytetrafluoroethylene (PTFE) flame retardant sheath layer, Kevlar layer, stainless steel braiding layer, screw-thread steel sheath, aramid yarn layer, tight tube fiber coating And optical fiber.
This setting conductor layer using inner shield, insulation, three layers of one of external shield structure and three-layer co-extruded technology so that The cable is with good pressure-resistant performance, the core and light unit layer twisted synthesizing cable that three insulated conductor layers are constituted, between cable core Filled glass fiber filled layer, stranding are outside heat insulation layer, by the ceramic SiClx for being overlapped wrapped two layers of Ceramic Composite band and extruding Rubber flame retardant coating is constituted, and is fire-retardant cooling oxygen barrier layer outside heat insulation layer, is constituted by extruding the oxygen barrier material of low-smoke non-halogen flame-retardant, fire-retardant cooling Gear fire bed outside oxygen barrier layer is constituted by being overlapped wrapped two layers of Ceramic Composite band and wrapped two layers of the steel-tape armouring in gap, outside armouring Low-smoke and halogen-free flame retardant polyolefin jacket material is extruded, so that the CM grades of fire-retarded fiber communication line has the resistance to electricity of low smoke halogen-free fire retardant fire resistant Characteristic is pressed, also there is low cigarette, low toxicity, fire resisting and fire performance, the internal insulation and crust type polyolefin of Ceramic silicon rubber Outer oxygen barrier layer and gear fire bed constitute combination flame retardant coating, efficiently solve high voltage flame resistant cable burning situation it is i.e. aerobic, It is insufficient to cable internal protection under hot conditions, and lead to the problem of high pressure fireproof power cable core short circuit, so that cable exists Continued power is remained in the case where kindling, the design of light unit layer can guarantee that optical fiber safety is reliably compound in outer housing layer It is internal.
Preferably, the filled layer is glass fibre filled layer, and the filled layer is filled in conductor layer and light unit layer In surrounding space.
Preferably, the metal screen layer is copper strip shielding layer, and copper strip shielding layer is around the outside of insulation screen Face.
The setting of this setting metal screen layer and insulation screen is so that the communication line has good pressure-resistant performance.
Preferably, the insulating layer is crosslinked polyetylene insulated layer.
Preferably, the low-smoke halogen-free flame-retardant sheath layer is the low smoke halogen-free flame-retardant polyolefin shield extruded outside steel-tape armouring layer Jacket layer.
Preferably, the conductor is pressed using copper free wire and is twisted.
The technical effect and advantage of the utility model: the CM grades of fire-retarded fiber communication line, the design of conductor layer is so that the electricity Cable has good pressure-resistant performance, the core that three insulated conductor layers are constituted and light unit layer twisted synthesizing cable, fills between cable core Glass fibre filled layer, the design of outer housing layer is so that the CM grades of fire-retarded fiber communication line has the resistance to electricity of low smoke halogen-free fire retardant fire resistant Characteristic is pressed, also there is low cigarette, low toxicity, fire resisting and fire performance, the internal insulation and crust type polyolefin of Ceramic silicon rubber Outer oxygen barrier layer and gear fire bed constitute combination flame retardant coating, efficiently solve high voltage flame resistant cable burning situation it is i.e. aerobic, It is insufficient to cable internal protection under hot conditions, and lead to the problem of high pressure fireproof power cable core short circuit, so that cable exists Continued power is remained in the case where kindling, the design of light unit layer can guarantee that optical fiber safety is reliably compound in outer housing layer It is internal.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the structural schematic diagram of the utility model outer housing layer;
Fig. 3 is the structural schematic diagram of the utility model conductor layer;
Fig. 4 is the structural schematic diagram of the utility model light unit layer
In figure: 1, outer housing layer;2, conductor layer;3, light unit layer;4, filled layer;5, low-smoke halogen-free flame-retardant sheath layer;6, Steel-tape armouring layer;7, the first Ceramic Composite band wrapping layer;8, low smoke and zero halogen oxygen barrier layer;9, Ceramic silicon rubber flame retardant coating;10, Two Ceramic Composites band wrapping layer;11, metal screen layer;12, insulation screen;13, insulating layer;14, conductor shield;15, it leads Body;16, polytetrafluoroethylene (PTFE) flame retardant sheath layer;17, Kevlar layer;18, stainless steel braiding layer;19, screw-thread steel sheath;20, aramid fiber Yarn layer;21, tight tube fiber coating;22, optical fiber.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of CM grades of fire-retarded fiber communication lines as shown in Figs 1-4, including outer housing layer 1, sets In conductor layer 2, light unit layer 3 and filled layer 4 in outer housing layer 1, the outer housing layer 1 includes setting gradually from outside to inside Low-smoke halogen-free flame-retardant sheath layer 5, steel-tape armouring layer 6, the first Ceramic Composite band wrapping layer 7, low smoke and zero halogen oxygen barrier layer 8, ceramics SiClx rubber flame retardant coating 9 and the second Ceramic Composite band wrapping layer 10, the conductor layer 2 include the gold set gradually from outside to inside Belonging to shielded layer 11, insulation screen 12, insulating layer 13, conductor shield 14 and conductor 15, the light unit layer 3 includes from outer To the interior polytetrafluoroethylene (PTFE) flame retardant sheath layer 16 set gradually, Kevlar layer 17, stainless steel braiding layer 18, screw-thread steel sheath 19, Aramid yarn layer 20, tight tube fiber coating 21 and optical fiber 22.
Specifically, the filled layer 4 is glass fibre filled layer, the filled layer 4 is filled in conductor layer 2 and light unit layer In 3 surrounding space.
Specifically, the metal screen layer 11 is copper strip shielding layer, and copper strip shielding layer is around insulation screen 12 Lateral surface.
Specifically, the insulating layer 13 is crosslinked polyetylene insulated layer.
Specifically, the low-smoke halogen-free flame-retardant sheath layer 5 is the low smoke halogen-free flame-retardant polyolefin extruded outside steel-tape armouring layer 6 Restrictive coating.
It is twisted specifically, the conductor 15 is pressed using copper free wire.
The CM grades of fire-retarded fiber communication line, conductor layer 2 using inner shield, insulation, three layers of one of external shield structure and three Layer co-extrusion technology, so that the cable has good pressure-resistant performance, the core and light unit layer that three insulated conductor layers 2 are constituted 3 twisted synthesizing cables, filled glass fiber filled layer 4 between cable core are heat insulation layer outside stranding, by being overlapped wrapped two layers of Ceramic Composite band Constituted with the Ceramic silicon rubber flame retardant coating that extrudes, be fire-retardant cooling oxygen barrier layer outside heat insulation layer, by extrude low-smoke non-halogen flame-retardant every Oxygen material is constituted, and the gear fire bed outside fire-retardant cooling oxygen barrier layer is by being overlapped wrapped two layers of Ceramic Composite band and wrapped two layers of the steel in gap Band armouring is constituted, and extrudes low-smoke and halogen-free flame retardant polyolefin jacket material outside armouring, so that the CM grades of fire-retarded fiber communication line is with low Cigarette halogen-free flameproof fire resisting voltage-resistent characteristic, also have low cigarette, low toxicity, fire resisting and fire performance, Ceramic silicon rubber it is interior absolutely The combination flame retardant coating that the outer oxygen barrier layer and gear fire bed of thermosphere and crust type polyolefin are constituted, efficiently solves high voltage flame resistant cable It is insufficient to cable internal protection under burning situation, that is, aerobic, hot conditions, and cause high pressure fireproof power cable core short-circuit The problem of, so that cable remains to continued power in the case where kindling, the design of light unit layer 3 can guarantee that 22 safety of optical fiber can The inside of outer housing layer 1 is compound in by ground, the CM grades of fire-retarded fiber communication line can be applied to power station, steam power plant, nuclear power station, The emergency of the crowded places such as tunnel, the power supply system of skyscraper and subway, hospital, market, theater, city square In power supply system, there are the characteristics such as excellent low cigarette, Halogen, fire-retardant, fire resisting, high voltage.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on, It should be included within the scope of protection of this utility model.

Claims (6)

1. a kind of CM grades of fire-retarded fiber communication line, including outer housing layer (1), the conductor layer (2) being set in outer housing layer (1), light Elementary layer (3) and filled layer (4), it is characterised in that: the outer housing layer (1) include the low cigarette that sets gradually from outside to inside without Halogen flame retardant sheath layer (5), steel-tape armouring layer (6), the first Ceramic Composite band wrapping layer (7), low smoke and zero halogen oxygen barrier layer (8), ceramics SiClx rubber flame retardant coating (9) and the second Ceramic Composite band wrapping layer (10), the conductor layer (2) include successively setting from outside to inside Metal screen layer (11), insulation screen (12), insulating layer (13), conductor shield (14) and the conductor (15) set, it is described Light unit layer (3) includes the polytetrafluoroethylene (PTFE) flame retardant sheath layer (16) set gradually from outside to inside, Kevlar layer (17), stainless steel Braiding layer (18), screw-thread steel sheath (19), aramid yarn layer (20), tight tube fiber coating (21) and optical fiber (22).
2. a kind of CM grades of fire-retarded fiber communication lines according to claim 1, it is characterised in that: the filled layer (4) is glass Glass fiber filled layer, the filled layer (4) are filled in the surrounding space of conductor layer (2) and light unit layer (3).
3. a kind of CM grades of fire-retarded fiber communication lines according to claim 1, it is characterised in that: the metal screen layer (11) For copper strip shielding layer, and copper strip shielding layer is around the lateral surface of insulation screen (12).
4. a kind of CM grades of fire-retarded fiber communication lines according to claim 1, it is characterised in that: the insulating layer (13) is to hand over Join polyethylene layer.
5. a kind of CM grades of fire-retarded fiber communication lines according to claim 1, it is characterised in that: the low-smoke non-halogen flame-retardant shield Jacket layer (5) is the low-smoke and halogen-free flame retardant polyolefin jacket layer extruded outside steel-tape armouring layer (6).
6. a kind of CM grades of fire-retarded fiber communication lines according to claim 1, it is characterised in that: the conductor (15) uses nothing Oxygen copper wire, which presses, to be twisted.
CN201920256839.XU 2019-02-28 2019-02-28 CM grades of fire-retarded fiber communication lines Active CN209374085U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110727066A (en) * 2019-09-27 2020-01-24 通鼎互联信息股份有限公司 High flame-retardant communication optical cable for rail transit
CN110879445A (en) * 2019-11-15 2020-03-13 西安思后网络科技有限公司 Ceramic-glass fiber fireproof communication optical cable
CN111048258A (en) * 2019-11-15 2020-04-21 西安思后网络科技有限公司 Fireproof communication optical cable

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110727066A (en) * 2019-09-27 2020-01-24 通鼎互联信息股份有限公司 High flame-retardant communication optical cable for rail transit
CN110879445A (en) * 2019-11-15 2020-03-13 西安思后网络科技有限公司 Ceramic-glass fiber fireproof communication optical cable
CN111048258A (en) * 2019-11-15 2020-04-21 西安思后网络科技有限公司 Fireproof communication optical cable

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